/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __USB_TYPEC_TBT_H
#define __USB_TYPEC_TBT_H

#include <linux/usb/typec_altmode.h>

#define USB_TYPEC_VENDOR_INTEL 0x8087
/* Alias for convenience */
#define USB_TYPEC_TBT_SID USB_TYPEC_VENDOR_INTEL

/* Connector state for Thunderbolt3 */
#define TYPEC_TBT_MODE TYPEC_STATE_MODAL

/**
 * struct typec_thunderbolt_data - Thundebolt3 Alt Mode specific data
 * @device_mode: Device Discover Mode VDO
 * @cable_mode: Cable Discover Mode VDO
 * @enter_vdo: Enter Mode VDO
 */
struct typec_thunderbolt_data {
    u32 device_mode;
    u32 cable_mode;
    u32 enter_vdo;
};

/* TBT3 Device Discover Mode VDO bits */
#define TBT_MODE BIT(0)
#define TBT_ADAPTER(_vdo_) (((_vdo_)&BIT(16)) >> 16)
#define TBT_ADAPTER_LEGACY 0
#define TBT_ADAPTER_TBT3 1
#define TBT_INTEL_SPECIFIC_B0 BIT(26)
#define TBT_VENDOR_SPECIFIC_B0 BIT(30)
#define TBT_VENDOR_SPECIFIC_B1 BIT(31)

#define TBT_SET_ADAPTER(a) (((a)&1) << 16)

/* TBT3 Cable Discover Mode VDO bits */
#define TBT_CABLE_SPEED(_vdo_) (((_vdo_)&GENMASK(18, 16)) >> 16)
#define TBT_CABLE_USB3_GEN1 1
#define TBT_CABLE_USB3_PASSIVE 2
#define TBT_CABLE_10_AND_20GBPS 3
#define TBT_CABLE_ROUNDED_SUPPORT(_vdo_) (((_vdo_)&GENMASK(20, 19)) >> 19)
#define TBT_GEN3_NON_ROUNDED 0
#define TBT_GEN3_GEN4_ROUNDED_NON_ROUNDED 1
#define TBT_CABLE_OPTICAL BIT(21)
#define TBT_CABLE_RETIMER BIT(22)
#define TBT_CABLE_LINK_TRAINING BIT(23)

#define TBT_SET_CABLE_SPEED(_s_) (((_s_)&GENMASK(2, 0)) << 16)
#define TBT_SET_CABLE_ROUNDED(_g_) (((_g_)&GENMASK(1, 0)) << 19)

/* TBT3 Device Enter Mode VDO bits */
#define TBT_ENTER_MODE_CABLE_SPEED(s) TBT_SET_CABLE_SPEED(s)
#define TBT_ENTER_MODE_ACTIVE_CABLE BIT(24)

#endif /* __USB_TYPEC_TBT_H */
